Flights from Houston to Aoslos

Cheapest flights from Houston

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Oct 5 - Tue, Oct 14

IAH

George Bush Intercontinental

MAD

Adolfo Suárez Madrid-Barajas

$503 Roundtrip, found 1 day ago

$503

Roundtrip

found 1 day ago

Select United flight, departing Sun, Oct 5 from George Bush Intercontinental to Adolfo Suárez Madrid-Barajas, returning Tue, Oct 14, priced at $503 found 1 day ago

Sun, Oct 5 - Thu, Oct 16

IAH

George Bush Intercontinental

MAD

Adolfo Suárez Madrid-Barajas

$508 Roundtrip, found 1 day ago

$508

Roundtrip

found 1 day ago

Select United flight, departing Sun, Oct 5 from George Bush Intercontinental to Adolfo Suárez Madrid-Barajas, returning Thu, Oct 16, priced at $508 found 1 day ago

Wed, Oct 8 - Tue, Oct 14

IAH

George Bush Intercontinental

MAD

Adolfo Suárez Madrid-Barajas

$509 Roundtrip, found 1 day ago

$509

Roundtrip

found 1 day ago

Select United flight, departing Wed, Oct 8 from George Bush Intercontinental to Adolfo Suárez Madrid-Barajas, returning Tue, Oct 14, priced at $509 found 1 day ago

Mon, Sep 29 - Tue, Oct 14

IAH

George Bush Intercontinental

MAD

Adolfo Suárez Madrid-Barajas

$512 Roundtrip, found 3 days ago

$512

Roundtrip

found 3 days ago

Select United flight, departing Mon, Sep 29 from George Bush Intercontinental to Adolfo Suárez Madrid-Barajas, returning Tue, Oct 14, priced at $512 found 3 days ago

Wed, Oct 8 - Thu, Oct 16

IAH

George Bush Intercontinental

MAD

Adolfo Suárez Madrid-Barajas

$515 Roundtrip, found 1 day ago

$515

Roundtrip

found 1 day ago

Select United flight, departing Wed, Oct 8 from George Bush Intercontinental to Adolfo Suárez Madrid-Barajas, returning Thu, Oct 16, priced at $515 found 1 day ago

Mon, Sep 29 - Thu, Oct 16

IAH

George Bush Intercontinental

MAD

Adolfo Suárez Madrid-Barajas

$518 Roundtrip, found 3 days ago

$518

Roundtrip

found 3 days ago

Select United flight, departing Mon, Sep 29 from George Bush Intercontinental to Adolfo Suárez Madrid-Barajas, returning Thu, Oct 16, priced at $518 found 3 days ago

Tue, Sep 30 - Thu, Oct 16

IAH

George Bush Intercontinental

MAD

Adolfo Suárez Madrid-Barajas

$522 Roundtrip, found 3 days ago

$522

Roundtrip

found 3 days ago

Select Virgin Atlantic flight, departing Tue, Sep 30 from George Bush Intercontinental to Adolfo Suárez Madrid-Barajas, returning Thu, Oct 16, priced at $522 found 3 days ago

Tue, Sep 30 - Tue, Oct 14

IAH

George Bush Intercontinental

MAD

Adolfo Suárez Madrid-Barajas

$523 Roundtrip, found 3 days ago

$523

Roundtrip

found 3 days ago

Select United flight, departing Tue, Sep 30 from George Bush Intercontinental to Adolfo Suárez Madrid-Barajas, returning Tue, Oct 14, priced at $523 found 3 days ago

Tue, Oct 7 - Mon, Oct 13

IAH

George Bush Intercontinental

MAD

Adolfo Suárez Madrid-Barajas

$527 Roundtrip, found 1 day ago

$527

Roundtrip

found 1 day ago

Select British Airways flight, departing Tue, Oct 7 from George Bush Intercontinental to Adolfo Suárez Madrid-Barajas, returning Mon, Oct 13, priced at $527 found 1 day ago

Wed, Oct 1 - Thu, Oct 16

IAH

George Bush Intercontinental

MAD

Adolfo Suárez Madrid-Barajas

$533 Roundtrip, found 3 days ago

$533

Roundtrip

found 3 days ago

Select United flight, departing Wed, Oct 1 from George Bush Intercontinental to Adolfo Suárez Madrid-Barajas, returning Thu, Oct 16, priced at $533 found 3 days ago

Tue, Oct 7 - Mon, Oct 13

IAH

George Bush Intercontinental

MAD

Adolfo Suárez Madrid-Barajas

$553 Roundtrip, found 1 day ago

$553

Roundtrip

found 1 day ago

Select Air Canada flight, departing Tue, Oct 7 from George Bush Intercontinental to Adolfo Suárez Madrid-Barajas, returning Mon, Oct 13, priced at $553 found 1 day ago

Tue, Oct 7 - Mon, Oct 13

IAH

George Bush Intercontinental

MAD

Adolfo Suárez Madrid-Barajas

$557 Roundtrip, found 1 day ago

$557

Roundtrip

found 1 day ago

Select United flight, departing Tue, Oct 7 from George Bush Intercontinental to Adolfo Suárez Madrid-Barajas, returning Mon, Oct 13, priced at $557 found 1 day ago

Tue, Oct 7 - Mon, Oct 13

IAH

George Bush Intercontinental

MAD

Adolfo Suárez Madrid-Barajas

$559 Roundtrip, found 1 day ago

$559

Roundtrip

found 1 day ago

Select United flight, departing Tue, Oct 7 from George Bush Intercontinental to Adolfo Suárez Madrid-Barajas, returning Mon, Oct 13, priced at $559 found 1 day ago

Tue, Oct 7 - Mon, Oct 13

IAH

George Bush Intercontinental

MAD

Adolfo Suárez Madrid-Barajas

$602 Roundtrip, found 1 day ago

$602

Roundtrip

found 1 day ago

Select American Airlines flight, departing Tue, Oct 7 from George Bush Intercontinental to Adolfo Suárez Madrid-Barajas, returning Mon, Oct 13, priced at $602 found 1 day ago

Sat, Oct 4 - Sat, Oct 11

IAH

George Bush Intercontinental

MAD

Adolfo Suárez Madrid-Barajas

$685 Roundtrip, found 1 day ago

$685

Roundtrip

found 1 day ago

Select Delta flight, departing Sat, Oct 4 from George Bush Intercontinental to Adolfo Suárez Madrid-Barajas, returning Sat, Oct 11, priced at $685 found 1 day ago

Tue, Oct 7 - Mon, Oct 13

IAH

George Bush Intercontinental

MAD

Adolfo Suárez Madrid-Barajas

$686 Roundtrip, found 1 day ago

$686

Roundtrip

found 1 day ago

Select KLM flight, departing Tue, Oct 7 from George Bush Intercontinental to Adolfo Suárez Madrid-Barajas, returning Mon, Oct 13, priced at $686 found 1 day ago

Wed, Oct 8 - Sat, Oct 11

IAH

George Bush Intercontinental

MAD

Adolfo Suárez Madrid-Barajas

$753 Roundtrip, found 1 day ago

$753

Roundtrip

found 1 day ago

Select Turkish Airlines flight, departing Wed, Oct 8 from George Bush Intercontinental to Adolfo Suárez Madrid-Barajas, returning Sat, Oct 11, priced at $753 found 1 day ago

Tue, Oct 7 - Mon, Oct 13

IAH

George Bush Intercontinental

MAD

Adolfo Suárez Madrid-Barajas

$819 Roundtrip, found 1 day ago

$819

Roundtrip

found 1 day ago

Select Lufthansa flight, departing Tue, Oct 7 from George Bush Intercontinental to Adolfo Suárez Madrid-Barajas, returning Mon, Oct 13, priced at $819 found 1 day ago

Tue, Oct 7 - Mon, Oct 13

IAH

George Bush Intercontinental

MAD

Adolfo Suárez Madrid-Barajas

$905 Roundtrip, found 1 day ago

$905

Roundtrip

found 1 day ago

Select Iberia flight, departing Tue, Oct 7 from George Bush Intercontinental to Adolfo Suárez Madrid-Barajas, returning Mon, Oct 13, priced at $905 found 1 day ago

Tue, Oct 7 - Mon, Oct 13

IAH

George Bush Intercontinental

MAD

Adolfo Suárez Madrid-Barajas

$999 Roundtrip, found 1 day ago

$999

Roundtrip

found 1 day ago

Select Brussels Airlines flight, departing Tue, Oct 7 from George Bush Intercontinental to Adolfo Suárez Madrid-Barajas, returning Mon, Oct 13, priced at $999 found 1 day ago